Annealing cover



Sept. 10, 1940. A. N. KOCH ET AL 2,214,249

ANNEALING COVER Filed June 19. 1939 a (E E 5*" FIGS.

FIG.7. FiG.8. FlG. 9.

INVENTOR. ALBERT N. KOCH Y CLYDE 0. HUFFHA N 4d d i I ATTORNEY Patented Sept. 10, 1940 UNITED STATES PATENT OFFICE- Mich.,'assignors to Steel Plate it Shape Corporation, Detroit, Mich, a. corporation of Delaware Application June 19, 1e39, Serial No. 279,968 Qlaims. ((1263-49) the hot gases from the tubes in-the, furnace shell proper could not pass up the side plates of the cover without interference with such extensions. In fact, the flow of such gases was retarded so that they were in effect pocketed or trapped where the roof plates extended over the side plates. This in turn caused rapid deterioration of the cover and frequently caused theuoof plates to burn out completely at the juncture thereof with the side plates.

In the present instance, the objectionable construction referred to has been dispensed with en- 7 tirely anda better and more efficient structure has been provided. Moreover, the cover has been otherwise strengthened to give it rigidity and to prevent the same from collapsing while being handled or while in use.

' In the accompanying drawing; 1

Figure 1 is a fragmentary side elevation of a cover embodying our invention Figure 2 is a fragmentary end elevation thereof; Figure 3 is a fragmentary top planview thereof; Figure 4 is a sectional view taken substantially onthe line H of Figure 1; Figure 5 is a sectional view taken substantially onthe e 5--5of1"igure2;

Figure 6 is a sectional view taken substantially on the line '6 of Figure 3;

Figures 7, 8 and 9, respectively, are fragmentary vertical sectional views of alternative rib con-- gations ll extending vertically and with the' straight end portions ill of adjacent wall members abutting and welded together so that an integralunit is provided. As illustrated in Figures 1 and 2, the side walls A and B are higher than the end walls 0 and p.

The roof member E is preferably arched trans versely and comprises a sheet of metal provided 55 at opposite sides thereof with straight-edge portions l2 and intermediate wavy edge portions l3. As illustrated in Figures 1 and 3, these straight edge portions I2 are at the front and rear-ends of the roof member and abut and are welded to the straight end portions ID of the upright 6 wall members A and '3, while the wavy edge portions I3 conform in shape and are welded to the inner faces of the corrugations ll ofthe up-' right wall members A and B just below the upper ends of the latter. 7 r 10 F are reinforcing ribs extending transversely of the roof E, while B are sections of a reinforcing rib extending longitudinally of the roof, preferably at the center line thereof. As shown, the ribs a are L-shape in cross section and are spaced 15 apart longitudinally of the roof. The upper edges l5 of these ribs F conform in curvature to the curvature of the arch E and are welded thereto while the bases I6 of 'said ribs aresubstantially straight. At opposite ends of the roof the bases 20 I6 of the ribs F rest upon and-are welded to the upper ends of the end wall members C and D, hence it will be apparent that these end ribs F close the spaces at opposite ends of the structure between the roof E and the upper ends of the end 26 H may have different cross sections than those 85 described above. For example, either or both of said ribs maybe in the form of plain plates such as 30 as illustrated in Figure '7, or either,

l.;-shape in cross sectionas illustrated at'32 in Figure '9. Inany instance, the upper: edges of the transuerse ribs F would conformio the curvature of the roof E, while the longitudinal rib sections Hwould be between transverse 'ribs 1 Thus, from the foregoing it will be observed that our annealing cover is free of gas traps and and secured to "the pockets and permits the gasesto. pass freely up at opposite ends ofthe structure extending along and being' secured upon the corrugated upper may be readilymanufact'ured and assembled at a minimum expense.

What we claim as our invention is:

1. An annealing cover comprising a pair of spa ed co rugated upright side waninembers of plate metal, a pair of corrugated upright endwall' members of plate metal secured to the side wall reof, an 5* arched roofmenrber of plate metal disposed be-., tween the sidewall members and secured to the inner faces thereof adjacent their upper edges,

members at opposite upright edges 1'.

opposite ends of said arched *mof member' extending over and cooperating-with the upper endsof said end wall members to provide segmental openings at opposite ends oithe structure,, and3 supporting and reenforcing means for the roof member comprising two sets of upright plate like rlbs, one set-extending transverselyof and. beingsecured to the-roof member atfspaced points longitudinally thereof, the transverse ribs ends of the end wall members whereby suchribs cooperate with the end wall members to support 1 the roof member and cooperate with. the end} wall members androof member to close the seg-v mental openings aforesaid, and the second set of ribs extending longitudinally of and secured to 1 the roof member, the ribs of the, second set.

being between and secured'also to adjacent faces of the transverse ribs of the first mentioned set.

2. An annealing cover comprising a pair of spaced upright side wall members of plate metal,

a pairof upright end wall members of plate metal secured to the sidewall members at opposite upright; edges thereof, an arched roof member of plate metal'disposedbetween the side wall mambers and secured to the inner faces'thereof ad-.

jacent their. upperedges, opposite ends of said arched roof member extendingover and cooperating with the upper ends of said end wall members to.provide segmental openings at opposite ends of the structure, andsupporting and reenforcing means for the .roo'f member comprising two sets of upright plate-like ribs, one setextendingtransversely of the roof member at spaced, points 'longitudinallythereof, the. upper j formingin curvature and being secured to the 50.

, members and roof member to close the segmental higher than theend wall members, and provided throughout substantially their entire area with vertically extendingcorrugations, an arched rooi member.;,of plate metal disposed between the g Side 8 m b rs, opposite ends of said roof" member. extending, over the edges ofsaid transverseribs substantially conlowerface, of said roof member, thetransverse ribs at opposite ends of the structure extending alongandqbeing secured upon the upper ends of the end wall members whereby such ribs cooperatewith the end wall members to support theroof member and cooperate with the end wall openings aforesaid, and the second set of ribs extending longitudinally of and secured to the roofmember, the ribs ''of the second set being between and secured also to adjacent. faces of the transverse ribs of the first set.

i 3. An annealing cover having a pair of spaced' upright side wall membersof plate metal, a pair of upright end wall members of plate metal se-' cured to the side wall members at opposite up right edges thereof, the side wall, members being upper ends of the --end wall members and cooperating therewith to provide segmental openings at opposite ends of the structure, opposite side edges of the roof member being wavy and mating with the vertr cally extending corrugations of the side wall.

members, said wavy edges being secured to the inner surfaces of the corrugations of the side wall members belowthe upper-ends of the end wall membersyand supporting and reenforcing means for the roof member comprising two sets of upright plate-like ribs, one set extending transversely of the roof member at spaced points longitudinally thereof, the upper edges of said vZtransverse 'ribsconforming in curvature and beingsecured to the lower face of said roof mem-' beri-thetransverse ribs at opposite ends of the structure extending along and being secured upon the upper ends of the end wall members whereby such ribs cooperate with the end wall members 4., In an-annealing cover, a'pair of spaced upright sidewalls, a pair of end walls secured to saidside ,walls at opposite upright edges thereof, transversely extending fvertically disposed platelike ribs extending along and secured to the upperedgesof the end walls, the upper edges of said j ribs being arched longitudinally, and an arched roof resting upon and extending longitudinally of the upper edges of the ribs aforesaid, opposite side edges of said roof being between and secured to the inner faces of the side walls adjacent their upper edges, opposite ends ofthe roof overlapping'and secured to the transverse ribs aforesaid, other transversely extending vertically disposed plate-like'ribs being between the transverse ribs aforesaid at spaced points longitudinally of the roof, the upper'edges of said other ribs conforming in shape and being secured to the lower face of said roof, and longitudinally extending ribs disposed between and secured to the transverse ribs, said longitudinally extending 'ribs being also secured *to' the lower face of the 'roof, portions of the longitudinally extending ribs at opposite ends of the structureextending over the upper edges of the end wall members,

and portions ofthe first mentioned transverse ribs at opposite'ends of the structure extending between and secured to said end wall members and longitudinal rib portions just mentioned.

: 5." An annealing cover having a pair of spaced upright side wall members of plate metal, a pair of upright end wall members of plate metal secured to the'side wall members at opposite upright edges thereof, an arched roof member of plate metal disposed between the side wall members and secured to the inner'faces thereof adjacent their-"upper-edges,'opposite-ends .of said '-'arched roof member extending over and cooperating with the upper endsofsaid end wall member to provide-segmental openings at opposite ends of thestructure, and supporting and reenforcing means-for the roof-member including two sets of upright plate-like ribs, one set extending trans! versely of and being secured to the roof member ,at' spacedYpointslongitudinally thereof, the

transverse ribs at opposite ends of the structure extending along and eing-secured upon the up per edges of hecnd wall niembers-sothat such ribs cooperate with the end'wall members to support the roof member and cooperate with the roof member and en d\wall members to close the segmental openings aforesai d, and the second \set of ribs extending longitudinally of and secured to. the roof member, the ribs of the second set being between and secured also to adjacent faces of the transverse ribs of the first mentioned set, portions of the longitudinally extending ribs at opposite ends of the structure extending over the upper edges of the end wall members, and portions of the transverse ribs'at opposite ends of the structure extending between and secured to said endwall members and longitudinally extending portions just mentioned.

ALBERT N. Kocn; CLYDE e. HUFFMAN. 

